Ablikim M, Bai JZ, Ban Y, Cai X, Chen HF, Chen HS, Chen HX, Chen JC, Chen J, Chen YB, Chi SP, Chu YP, Cui XZ, Dai YS, Deng ZY, Dong LY, Dong QF, Du SX, Du ZZ, Fang J, Fang SS, Fu CD, Gao CS, Gao YN, Gu SD, Gu YT, Guo YN, Guo YQ, Guo ZJ, Harris FA, He KL, He M, Heng YK, Hu HM, Hu T, Huang GS, Huang XP, Huang XT, Ji XB, Jiang XS, Jiao JB, Jin DP, Jin S, Jin Y, Lai YF, Li G, Li HB, Li HH, Li J, Li RY, Li SM, Li WD, Li WG, Li XL, Li XQ, Li YL, Liang YF, Liao HB, Liu CX, Liu F, Liu F, Liu HH, Liu HM, Liu J, Liu JB, Liu JP, Liu RG, Liu ZA, Lu F, Lu GR, Lu HJ, Lu JG, Luo CL, Ma FC, Ma HL, Ma LL, Ma QM, Ma XB, Mao ZP, Mo XH, Nie J, Olsen SL, Peng HP, Qi ND, Qin H, Qiu JF, Ren ZY, Rong G, Shan LY, Shang L, Shen DL, Shen XY, Sheng HY, Shi F, Shi X, Sun HS, Sun JF, Sun SS, Sun YZ, Sun ZJ, Tan ZQ, Tang X, Tian YR, Tong GL, Varner GS, Wang DY, Wang L, Wang LS, Wang M, Wang P, Wang PL, Wang WF, Wang YF, Wang Z, Wang ZY, Wang Z, Wang Z, Wei CL, Wei DH, Wu N, Xia XM, Xie XX, Xin B, Xu GF, Xu Y, Yan ML, Yang F, Yang HX, Yang J, Yang YX, Ye MH, Ye YX, Yi ZY, Yu GW, Yuan CZ, Yuan JM, Yuan Y, Zang SL, Zeng Y, Zeng Y, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HY, Zhang JW, Zhang JY, Zhang QJ, Zhang XM, Zhang XY, Zhang YY, Zhang ZP, Zhang ZQ, Zhao DX, Zhao JW, Zhao MG, Zhao PP, Zhao WR, Zhao ZG, Zheng HQ, Zheng JP, Zheng ZP, Zhou L, Zhou NF, Zhu KJ, Zhu QM, Zhu YC, Zhu Y, Zhu YS, Zhu ZA, Zhuang BA, Zhuang XA, Zou BS. Observation of a broad 1-- resonant structure around 1.5 GeV/c2 in the K+K- mass spectrum in J/psi-->K+K-pi0.
PHYSICAL REVIEW LETTERS 2006;
97:142002. [PMID:
17155241 DOI:
10.1103/physrevlett.97.142002]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2006] [Indexed: 05/12/2023]
Abstract
A broad peak is observed at low K+K- invariant mass in J/psi-->K+K-pi(0) decays found in a sample of 5.8x10(7) J/psi events collected with the BESII detector. The statistical significance of the broad resonance is much larger than 5sigma. A partial wave analysis shows that the J;{PC} of this structure is 1--. Its pole position is determined to be [1576(-55)(+49)(stat)-91+98(syst)] MeV/c(2)-i/2[818(-23)(+22)(stat)-133+64(syst)] MeV/c(2). These parameters are not compatible with any known meson resonances.
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